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[Fix] Fix bbox clamp in pt1.10 #7074

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Jan 26, 2022
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2 changes: 1 addition & 1 deletion mmdet/models/dense_heads/autoassign_head.py
Original file line number Diff line number Diff line change
Expand Up @@ -197,7 +197,7 @@ def forward_single(self, x, scale, stride):
# scale the bbox_pred of different level
# float to avoid overflow when enabling FP16
bbox_pred = scale(bbox_pred).float()
bbox_pred = F.relu(bbox_pred)
bbox_pred = bbox_pred.clamp(min=0)
bbox_pred *= stride
return cls_score, bbox_pred, centerness

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3 changes: 1 addition & 2 deletions mmdet/models/dense_heads/fcos_head.py
Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,6 @@

import torch
import torch.nn as nn
import torch.nn.functional as F
from mmcv.cnn import Scale
from mmcv.runner import force_fp32

Expand Down Expand Up @@ -155,7 +154,7 @@ def forward_single(self, x, scale, stride):
# float to avoid overflow when enabling FP16
bbox_pred = scale(bbox_pred).float()
if self.norm_on_bbox:
bbox_pred = F.relu(bbox_pred)
bbox_pred = bbox_pred.clamp(min=0)
if not self.training:
bbox_pred *= stride
else:
Expand Down